Pumping apparatus.



PATENTED MAY 15, 1906. I

' v AFB; GUY. .P M'PING APPARATUS. 'APPLiOLTIOH FILED APR; 3. 1905.

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lNVENTOR WITNESSES y" ATTORNEY 'PATENTED MAY 15,1906.

A. E. GUY. PUMPING APPARATUS.

APPLICATION FILED APR. 3, 1905.

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WITNESSES:

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Patented. May 15:1 LS 060 I Y l 1.11 :r

rain in a moving of a jconrrifugal pump, a casing therefor havmgn iilnarance-"spaca between said member and: said casing constructed to permit a regurgitation of a part of the ilowdelii'cred by mid member, andnioans :ivxuated b said r gurgii atlng .llow for ar (Ll-crating ilk? lluidsupply to said inngellir aimiillai', also in the embodiment of said in Janaa'l inoana in an injocto" actuated by said regaip l'at ing flow also in tho ministruction of said iniertor and lzl' e various combinations rnora partirularly pointed out in the 'LlsfiilDS. lily reason oi this nonz-ztruction liani Gillllfdid to drive a reniril ugal pinup at high speed (lllet'lly from an Mastic-fluid turbine, and so to (lelivnr liquid at high pressure, which is advantageous for many special purposes as, for example, holler fondling and pumping; against high heads. i v In another applitation for Letters Patent, Serial 'No. 253,- lil, filed sinuiltanoously here i with I hai described and Qlaimed, hroz'ully, the combination of a puinp and means arluated h va portionof tholiq'uid delivered flu-re by for increasing the presrniro of the liruiidon the suction side of the pump.

In the an:oinpanying drawings, Fin-are 1 ia a vertical sei-tion on the line :3 .1: of F h 2, and l ign Zis section on the line 1 y of Fig. 1. a5 Similar numbers of reference indirale like parts.

1 is the impeller "whorl or runner of a irontri'fugal pump. The shaft 2, on which the huh 3 of said Wheel sorured. is join-railed in lho walla oi the raising -l and actuated by an suiiahlv motor: Said wheel ronsiats of an elii'tiarior ring a huh and impeller-- l lz'illfin l5 lie-tween huh and ring. As; tho presuni. apparalus is duplex, the resulting tour liquid-unwilling inaruher, such as the runnerplvli \rhvr l lnis two rings 5 1 Two aria ol hladi-a (,3 5. and a huh I3. whirl: is ol' largrlsl, l s:++li lll il ai ils middlo portion, lrlwwn i'hv ring- T3 IT is ihv dis:hargv-iawningll. Thu inl'vrnal dianwlrr ol vavh ring graduall do r-rraava and then rraduall' inrrvawa-in tho dirnrlion ol' liuu'iddlon and is at a maximum at l lwinnvrvndaol'lho !'l1l J' =,\\'lIl 'll lornx lla. llll'rlllilzll'llr ol the disrhargwopvnilug .l. 'lho aurl'aro o'l ihr huh I; ronloi'iils Quiiiizill) lo tln: inner Chill-01H of tho rings, (nu-opt iii; rlu- 0nd or? the huh, whirh aro ogjival. ll will he soon ihal lrrrmaon ol (his "onslrui lion thoinlolpa fagoa ol tho wheel gradually lwronio from sl ru'tod until the enda of Lhc huh aro roar-had, when lhoy' law-nun annular and that. lhon. tlwsr annular passages inrroasa in rirrsuan l orvnre, and sorurveoutwardly lo tilne diac'hargwopmiing 9. llonro ihe liquid flow traversing those, passages lNFUUlOrf inrrcased. in Yvloril'y liol'ori" it rrarlna llw inzpollvrhladoa, n'hirh arr ar 'ang od in liar diarharg' owning; I! and oxtimd into rho annular pas sagas. t aid hlades servo also lo ronnart the llllflr; and huh too'uthvr.

Thr liquid from the suction-pint. l l nassra to tho hrauch pipe 12 and I3, Al the undsol said branch pipes are ront'raruwl nozzles--14- 15, Wl1l(l1 enter the flared ends of tho rings 7. Thu nozxlr 0nd arr sniallvr in dianlcter than the rings. so that -a1nrular naasages 16 are framed between nozzles and rings. passages (-oinn'mnicate with a if anihcr 17, which surrraunla the \\'l1eol,..:md has rhainhvr 17 ronnnnnicatoa with the circular dvlirc-iychamber 18, n'hirh in. turn wanmunicates with the clelivvi y pipo ll).

it will ho olwious that; each nozzle, as 14, and the aurrrainding ring, as 5. form an injom tor, one y'all oi" wlnohnalaz ly, tho nozzlov is stationary and the other wall of which namely, tho rin g -is rotary, or, in other Words, a part of rho injector also a part of tho ilnprlliln l dork-e and another part of the injoolor is a part, ol the l.lll0t-'i')lp6, which. as is here slntm'n, may he integrally a part of tho Wheohcasing.

The oprration ol the app-a aim is as followa: The liquid drawn in hy the rotation of tho iinpolling-nlieol, as indicated by tho a 1* rows, passes into the rings 33 and 7', is augg; niented in Velocity in tho annular passages, and is dalivored hy "the blades into the chamher l8, and so the outlobpipo 1.9. Aportion of the liquid under pressure in the delivery-chamber asses therefrom to the chamber 17, and so t rough the annular passages 16 around the nozzles 14,15; This liquid then imparts its kinetic energy to the flow entering the wheel from the nozzles 14 15, and in this way the initial pressure of the liquid passing to the bladesis increased. 1

Inasmuch as a comparatively small au mentation of initial ressure may be suiiicientfor the purpose in view, the Wheel may be disposed in its casing With no more clearance around it than is necessary to insure its free rotation-that is to say, the clearance Which would necessarily exist between the inner periphery of the rings and the nozzles and the outer periphery of rings and casing will of itself sufficiently produce the spaces heretofore designated as the passages 16 and chamber 7 to permit the requisite flow of fluid from delivery-pipe towheel-inlet, or, in other words, the normal regurgitation of liquid due to leakage around a rotary impelling-wheel may by the above-described means be utilized to increase the kinetic energy of the liquid-supply.

1. A moving liquid-im elling member, a casing therefor having a c earance-space between said member and said casing constructed to permit a regurgitation of a part of the flow delivered by said member, and means, actuated by said regurgitating flow, for accelerating the fluid-supply to said impellin member.

2. moving liquid-impelling member, a casing therefor having a suction-passage and a clearance-space between said member and said casing constructed to permit a re urgitation of a part of the flow delivered by said member, and an injector in said suction-passage actuated by said regurgitating How.

3. In combination with a centrifugal pump having a runner, a casing therefor and a clearance-space between said runner and casing constructed to permit the regurgitation of a part of the delivered flow, an injector constructed to deliver fluid-supply to said pump and actuated by said regurgitating 4. In a centrifugal pump, a runner, a cas 1ng therefor, and an injector'within said runner, delivering fluid-supply thereto.

said member: the said injector having its inner nozzle stationary and its outer wall sur rounding .said nozzle, movable with said member.

8. In a pump, a rotary liquid-impeding member and an injector delivering liquid to said member: thesaid injector having one of:

its concentric walls stationary and the other rotarywith said member.

member, a supply-ducttherefor, and and-njector delivering liquid to said member ztl ie, said injector having its inner nozzleon supply-pipe and its outer surrounding Wall on said rotary member.

10. In a pump, a rotary liquid-impellin member, an injectorsupplyingliquid to sai member and having one of its concentric walls stationary and the ot'he'r'rotary with said member, and means for conveying liquid from the deliver side of said impelling memher to the space etween said in ector-walls.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ALBERT E. GUY.-

lYitnesses PARK BENJAMIN, 'Jr., JANET A. GLENDINNING.

7s. 9. In a pump, a rotary liquidimpelli ng 

